> JapanHacked_Cybersecurity incidents in Japan

Government

Susaki City

Susaki City (Susaki, Kochi; Municipality) appears in 1 related cybersecurity incident. The latest was disclosed on 2026-10-16.

Profile

Industry/type

Municipality

Location

Kochi, Susaki

Services

Tsuribaka City SUSAKI

Website

https://www.city.susaki.lg.jp/

Public figures

Residents18,7722026-01-01
MIC: 住民基本台帳に基づく人口、人口動態及び世帯数（令和8年1月1日現在）

Metric	Value		As of	Source
Residents	18,772		2026-01-01	MIC: 住民基本台帳に基づく人口、人口動態及び世帯数（令和8年1月1日現在）

Incident history

Disclosed 2026-10-16Updated 2026-10-27 19:58Aichi, Chiba, Fukushima, Hiroshima, Kochi, Miyagi, Nagano, Niigata, Tokyo, Toyama[Investigating][Severity: Critical][Through a supplier][Major]
Studio: unauthorized access to the cloud environment of the Studio website builder
[Web app exploit][Data leak]Organizations 28

		Incident	Role	Impact level				Methods	Impacts		Status
2026-10-16	2026-10-27 19:58	Studio: unauthorized access to the cloud environment of the Studio website builder	[Through a supplier]	[Major]	[Critical]	28 Digital Agency, Nagoya City, Studio Inc., Chiba Prefectural Government, Hiroshima Prefecture, Nagano Prefectural Government, Money Forward, Inc., Niigata City, and US Inc., Hakky Inc., JIJ Inc., Link-U Group Inc., Luup, Inc., Money Forward Home, Inc., Money Forward Kessai, Inc., Money Forward X, Inc., RAKSUL Inc., ReFact Inc., Relic Inc., SmartHR, Inc., StoryHub Inc., Susaki City, Tamura City, ThinQ Healthcare Inc., Toho Gas Co., Ltd., Tohoku EPCO Frontier Co., Inc., TVer Inc., Zenmetry Corporation	Aichi, Chiba, Fukushima, Hiroshima, Kochi, Miyagi, Nagano, Niigata, Tokyo, Toyama	[Web app exploit]	[Data leak]	Unknown	[Investigating]